<template>
    <div>
<!--        面包屑导航区域-->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>

<!--卡片视图区域-->
      <el-card>
        <div>
        <!--        搜索与添加区域-->

        <el-row :gutter="20">
          <el-col :span="15">
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
              <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
          </el-col>
        </el-row>

<!--        用户列表区域-->
        <el-table :data="userlist" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态" >
            <template slot-scope="scope">
              <el-switch
                v-model="scope.row.mg_state"
                @change="userStateChanged(scope.row)"
              >
              </el-switch>
            </template>
          </el-table-column>


          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
              <!--              修改按钮-->
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
              <!--              删除按钮-->
              <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
              <!--              分配角色按钮-->
              <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
              </el-tooltip>
            </template>
          </el-table-column>

        </el-table>
<!--        分页区域-->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>



<!--分配角色的对话框-->
          <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%"
            @close="setRoleDialogClosed">
            <div>
              <p>当前的用户:{{userInfo.username}}</p>
              <p>当前的角色:{{userInfo.role_name}}</p>
              <p>分配新角色:
                <el-select v-model="selectedRoleId" placeholder="请选择">
                  <el-option
                    v-for="item in roleList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                  </el-option>
                </el-select>
              </p>
            </div>
            <span slot="footer" class="dialog-footer">
              <el-button @click="dialogVisible = false">取 消</el-button>
              <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
          </el-dialog>


          </div>
      </el-card>


<!--添加用户的对话框-->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
        >
<!--        内容主题区域-->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
             <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
             </el-form-item>
              <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
              </el-form-item>
              <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
              </el-form-item>
              <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
              </el-form-item>
            </el-form>
<!--        底部区域-->
        <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary"  @click="addUser">确 定</el-button>
  </span>
      </el-dialog>
<!--      修改用户的对话框-->
      <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
        <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
          <el-form-item label="用户名" >
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱"  prop="email">
            <el-input v-model="editForm.email" ></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile" ></el-input>
          </el-form-item>
          </el-form>
        <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
      </el-dialog>

  </div>
</template>

<script>
  export default {
    name: 'User',
    data(){
      //验证邮箱的规则
      var checkEmail=(rule,value,cb)=>{
        //验证邮箱的正则表达式
        const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/


        if(regEmail.test(value)){
          //合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的邮箱'))
      }

      //验证手机号的规则
      var checkMobile=(rule,value,cb)=>{
        //验证手机号的正则表达式
        const regMobile=/^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

        if(regMobile.test(value)){
          //合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的手机号'))
      }

      return{
        //获取用户列表的参数对象
        queryInfo:{
          query:'',
          // 当前的页数
          pagenum:1,
          //当前每页显示多少条数据
          pagesize:2
        },
        userlist:[],
        total:0,
        //控制用户对话框的显示与隐藏
        addDialogVisible:false,
        //添加用户的表单数据据
        addForm:{
          username:'',
          password:'',
          email:'',
          mobile:''
        },

          //添加表单的验证规则对象
          addFormRules:{
            username:[
              {required:true,message:'请输入用户名称:',trigger:'blur'},
              {min:3,max:10,message:'用户名的长度在3到10个字符之间',trigger:'blur'}
            ],
            password:[
              {required:true,message:'请输入用户密码:',trigger:'blur'},
              {min:5,max:15,message:'密码的长度在5到15个字符之间',trigger:'blur'}
            ],
            email:[
              {required:true,message:'请输入用户邮箱:',trigger:'blur'},
              // {min:5,max:15,message:'密码的长度在5到15个字符之间',trigger:'blur'}
              {validate:checkEmail,trigger:'blur'}
            ],
            mobile:[
              {required:true,message:'请输入手机号码:',trigger:'blur'},
              // {min:5,max:15,message:'手机号码的长度在5到15个字符之间',trigger:'blur'}
              {validate:checkMobile,trigger:'blur'}
            ]
          },



        // 控制修改用户对话框的的显示与隐藏
          editDialogVisible: false,
        // 查询到的用户信息对象
        editForm:{},
        // 修改表单的数据规则对象
        editFormRules:{
          email:[
            {required:true,message:'请输入用户邮箱:',trigger:'blur'},
            {validator:checkEmail,trigger:'blur'}
            ],
          mobile:[
            {required:true,message:'请输入手机号码:',trigger:'blur'},
            {validator:checkMobile,trigger:'blur'}
          ]
        },
        //控制分配角色对话框的显示与隐藏
        setRoleDialogVisible:false,
        //需要被分配角色的用户信息
        userInfo:{},
        // 所有角色的数据列表
        roleList:[],
        //已经选中的角色id值
        selectedRoleId:'',



      }
    },
    created () {
      this.getUserList()
    },
    methods:{
      async getUserList(){
        const{data:res}=await this.$http.get('users',{params:this.queryInfo})
        if(res.meta.status!==200) return this.$message.error('获取用户列表失败')
        this.userlist=res.data.users
        this.total=res.data.total
        console.log(res)
      },
      // 监听pagesize改变的事件
      handleSizeChange(newSize){
        this.queryInfo.pagesize=newSize;
        // console.log(newSize)
        this.getUserList()
      },
      //监听页码值改变的事件
      handleCurrentChange(newPage) {
        // console.log(newPage);
        this.queryInfo.pagenum=newPage;
        this.getUserList()
      },
      //监听switch状态的改变
      async userStateChanged(userInfo){
        // console.log(userInfo)
        const {data:res}=await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
        if(res.meta.status!==200){
          userInfo.mg_state=!userInfo.mg_state
          return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功！！')

      },
      //监听添加用户对话框的关闭事件
      addDialogClosed(){
        this.$refs.addFormRef.resetFields()
      },
      //点击按钮，添加新用户
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          // console.log(valid)
            if (!valid) return
            //可以发起添加用户的网络请求
            const { data: res} = await this.$http.post('users', this.addForm)
            if (res.meta.status !== 201) {
              this.$message.error('添加用户失败')
            }
            this.$message.success('添加用户成功')
            // 隐藏数据对话框
            this.addDialogVisible = false
            // 重新获取对话列表
            this.getUserList()
          })
      },
      //展示编辑用户的对话框
      async showEditDialog(id){
        // console.log(id)
        const{data:res}=await this.$http.get('users/'+id)
        if(res.meta.status!==200){
          return this.$message.error('查询用户信息失败')
        }
        this.editForm=res.data
        this.editDialogVisible=true

      },
      //监听修改用户对话框的关闭事件
      editDialogClosed(){
        this.$refs.editFormRef.resetFields()
      },
      //修改用户信息并提交
      editUserInfo(){
        this.$refs.editFormRef.validate(async valid=>{
          if(!valid) return
          //发起修改用户信息的数据请求
          const{data:res}=await this.$http.put('users/'+this.editForm.id,{
            email:this.editForm.email,
            mobile:this.editForm.mobile
          })
          if(res.meta.status!==200){
            return this.$message.error('更新用户信息失败')
          }
          // 关闭对话框

          this.editDialogVisible=false
          // 刷新数据列表
          this.getUserList()
          // 提示修改成功
          return  this.$message.success('更新用户信息成功')
        })
      },
      //根据id删除对应的用户信息
      async removeUserById(id){
        //弹框用户是否要进行删除
        const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>{
          return err
        })
        //如果用户确认删除，返回值为文本字符串confirm

        //如果用户取消删除，返回值为文本字符串concel
        // console.log(confirmResult)
        if (confirmResult!=='confirm'){
          return this.$message('已经取消删除该用户')
        }
        // console.log('删除用户成功')
        const {data:res}=await this.$http.delete('users/'+id)
        if(res.meta.status!==200){
          return this.$message.error('删除用户失败')
        }
        return this.$message.success('删除用户成功')
        this.getUserList()
      },
      //展示分配角色的对话框
      async setRole(userInfo){
        this.userInfo=userInfo
        // 展示对话框以前获取所有的角色列表
        const{data:res}=await this.$http.get('roles')
        if(res.meta.status!==200){
          return this.$message.error('获取角色列表失败')
        }

        this.roleList=res.data
        this.setRoleDialogVisible=true
      },
      //点击按钮，分配角色
      async saveRoleInfo(){
        if(!this.selectedRoleId){
          return this.$message.error('请选择要分配的角色！！')
        }
        const{data:res}=await this.$http.put(`users/${this.userInfo.id}/role`,
          {
            rid:this.selectedRoleId
          })
        if(res.meta.status!==200){
          return this.$message.error('更新角色失败')
        }
        this.$message.success('更新角色成功')
        this.getUserList()
        this.setRoleDialogVisible=false
      },
      //监听分配角色对话框的关闭事件
      setRoleDialogClosed(){

        this.selectedRoleId=''
        this.userInfo={}
      }

    }
  }
</script>

<style scoped>

</style>
